Riveting machine



Nov. 17, 1931. E. PEACOCK RIVETING MACHINE Filed April 15, 1930 3 Sheets-Sheet 1 New 17, 1931. E. PEAcocK RIVETING MACHINE Filed April 15, 1930 5 Sheets-Sheet 2 Inventor zza'a/rd/ mcaci A liomey Novv 17, 1931. E PEACZQCK 1532,7 32

RIVETING MACHINE Filed April 15, 1930 3 Sheets-Sheet 3 Patented Nov. 17, 1931 UNITED STATES PAT NT- OFFICE j EDWARD PEACOCK, 0E GLASSIBORO', NEW JERSEY, ASSIGNOR To WALTER s. Dawson, or 'enassnono, NEW JERSEY mvnrmo MACHINE Application filed April 15, 1930. Serial No. 444,487.

This invention relates to riveting machines, and an object of the invention is to provide a machine which will support itself on the plate to be operated on at the same time holding the bucking up tool without the necessity of excess labor in its manipulation.

Further objects of the invention are to provide a device of the character referred to that is strong, compact and durable, thoroughly reliable forits intended purpose, very simple in its method of assembly and comparatively inexpensive to manufacture and operate. j

With the foregoing and other objects in view, the invention consists of a novel construction, combination and arrangement of parts as will be hereinafter more specifically described and illustrated in the accompanying drawings, wherein is disclosed an embodiment of the invention, but it is to be understood that changes, variations and modifications may be resortedto Without departing from the spirit of the claims hereto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a sideelevation of one form of the invention having its bucking up plates partly in section and showing the invention applied to the operation of riveting plates together,

Fig. 2 is a fragmentary side elevation'of a modified form of the invention,

Fig. 3 is a fragmentary side elevation of another modified form of the invention,

substantially on the, line 44 of Fig. 1.

Fig. 5 is a detailed vertical section taken substantially on the line 55 of Fig. 1,

Fig. 6 is a side elevation of the standard,

Fig. 7 is a bottom plan view of the electro magnet, and

Fig. 8 is a vertical section taken substantially on the line 88 of Fig. 7.

Referring to the drawings in detail all forms of the invention have a vertical standard' 9 preferably circular -in cross section, which merges at its lower end in a flat disk 10 formedwith openings about its margin. Adjacent the upper end of the standard, it is '30. Fig. 4 is a horizontal detailed section taken at 13 and intermediate the ends thereof, has

an integral brace 14 depending therefrom. Extending from the outer ends, one on each side of the arm are a'pair of grooves 15, 16, that extend about half the lengthof the arm. On the inner end ofthe arm 13 and the lower end of the brace 14, each are formed with semi-circular lateral offset portions 17 that has a semi-circular recess 18 therein'which is adapted to overlap one-half of the respective grooves 11, 12.

A cap 19having a semi-circular recess 20 therein isadapted to be bolted as at 21, 22 to :the inner faces of these offset portions of the arm andbrace, thereby forming a bearing that permits the rotation of the arm 13 about the standard 9. r v

A sliding block 23 is formed with a central opening 24 projecting into the openings,

with tongues, 25, 26 that extend into the grooves for the purpose of guiding the blocks or carriage 23 along the free end of the arm 13.

p 7 On the upper end of the block is a rearwardly directed horizontal base plate 27 that supports the motor 28 and projecting forwardly from the motor 28 is a worm gear 29 carried by the end of the motor drive shaft Projecting laterally from theside of the block or carriage 23 is a spindle 31 on which is rotatably mounted a single hub 32 which carries a gear 33 at its inner end that meshes with the worm gear 29. Onthe outer portion of the hub is formed" an eccentric cam 34. .The, hub 32 isheld on the spindle 31 by a circular collar 35' held in place by a cotter pin 36. Depending from the lower face of the block 23is a bearing yoke 37 having parallel horizontal spaced legs 38,39, stepped one above the other, and adjacent the outer of these legs, they are formed with alined circular-openings'40, 41, which form bearings for "thevertical plunger 42, the intermediate portion of the plunger 42 extending through the openings, and the upper ends thereof being held by the tension of the coil spring 43 against the periphery of the cam 34.

The coil spring 43 is disposed about the plunger 42 and the lower end thereof bears against the upper face of the leg 38. The upper end of the coil spring abuts against a lateral circular ring 44 that is rigidly secured about the plunger 42 by means of set screws 45.

The lower end of the plunger 42 projects free of the leg 38 and is formed with a cupped head 46 that is adapted to bear against the shank of the rivet to be driven.

The carriage 23 is detached from the free end of the arm 13, and shall be changeable.

One carriage may be used for riveting if desired, or a different carriage may be placed on the apparatus for drilling, punching or whatever purpose the support may accommodate.

In one form of the invention shown in Fig. 1 of the drawings, the disk 10 on the bottom of the standard may be bolted as at 42 to a round electro magnet indicated generally at 48. In this case a fiat bucking-up bar 49 is formed with a semi-spherical cavity 50 on its inner face and adjacent its outer end.

In this form of the invention the electromagnet 48 is energized at the same time that the motor is operated, whereby the buckingup bar 49 may be held against the head of the rivet as will be clearly understood by refer- L ring to Fig. 1 of the drawings.

The plates 51 and 52 in this view are being riveted by the device of the present inven- 'tion.

In another form of the invention shown in Fig. 2 of the drawings, there is substituted for the bucking-up bar an electro-magnet indicated generally at 53 having a semi-circular pocket 54 therein, to receive the head of the rivet that is securing the plates 51, 52 together.

In this form of the invention, the electro magnet 48 is secured to the standard 9 in a manner similar in all respects to that shown in Fig. 1 of the drawings.

Now in the form of the invention shown in Fig. 3 of the drawings, the disk 10 on the bottom of the standard is adapted to be disposed over the electro-magnet indicated generally at 55 which is bolted on the end of the bucking-up bar 49 by means of the bolts 56. The electro-magnet 55 will be disposed so as to lie subjacent the disk 10 on the standard 9 when the cavity 50 is disposed against the rivet head which is being operated upon to secure plates 51, 52, together. 7

All of the electro-magnets 48, 53 and 55 are formed in the same manner as is clearly shown in Figs. 7 and 8. These electro-magnets consist of an outer metallic casing I which is round in configuration and hollow on the interior thereof. The lower face of the casing is open and has secured thereover by means of the stud screws 61, a cover plate 62.

Supported in insulation 63 anchored to the inner walls of the casing are a pair of magnet poles 64, 65 supported at their lower ends on the cover plate 62. This cover plate is of metal so as not to aifect the poles 64, 65 of the magnet. V

The poles 64, 65 are separated at the center of the casing 60 by a block of insulation 66 supported at its lower end on the cover plate 62. The poles are energized by electric current preferably connected with the motor so that when the motor operates the poles will be energized.

In view of the foregoing, it will be seen that I have provided a means for flattening rivets which are selr'supporting on the plates to be riveted together showing the buck-up bar in Fig. 1 of the drawings, held by the electro-magnet that secures the standard joints to the plates being riveted.

On the other hand, Fig. 2 of the drawings shows a separate electro-magnet 48 and 53,

one for supporting the standard 9 and the other being separately held to the plate by the attraction for the steel plate.

In Fig. 3 of the drawings, there is shown a single electro-magnet 55 which not only holds the inner end of the bucking-up bar 49, but by its attraction, holds the base 10 securedly to the lower plate 52 being operated u on.

The present embodiment of the invention has been disclosed in considerable detail merely for the purpose of exemplification, since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It is to be understood that by describing in detail, herein any particular form, structure, or arrangement of the invention, it is not intended to limit the invention beyond the terms of the several claims or the requirements of the prior art.

Having thus described my invention, what 1 plunger in one direction, a base formed integrally with the block, an electric motor mounted on the base, means operatively connecting the gear with the electric motor for actuation by said motor.

2. A device of the character described comprising a supporting arm, a block encircling the arm and movable longitudinally thereon, a yoke fixed on the block, apertured arms extending from the yoke, a plunger extending slidably through the apertures in the arms, a laterally extending spindle formed integrally on the block, a gear journaled on the spindle, a cam fixed on one side of the gear for rotation therewith, said cam operatively engaged with one end of the plunger for actuatin said plunger in one direction, .a base forme integrally with the block, an electric motor mounted on the base, means operatively connecting the gear with the electric motor for actuation by said motor, a ring fixed on the plunger between the arms, a coil spring encircling the plunger and having one end en gaged with one of the arms and its other end engaged with the ring for actuating the plunger in the opposite direction;

3. A device of the character described com prising a supporting arm, a block encircling the arm and movable longitudinally thereon, a yoke fixed on the block, apertured arms extending from the yoke, a plunger extending slidably through the apertures in the arms, a laterally extending spindle formed integrally on the block, a gear j ournaled on the spin die, a cam fixed on one side of the gear for rotation therewith,,said cam operatively engaged with one end of the plunger for actuating said plunger in one direction, a base formed integrally with the block, an electric motor mounted on the base, means operatively connecting the gear with the electric motor for actuation by said motor, a ring fixed on the plunger between the arms, a coil spring encircling the plunger and having one end engaged with one of the arms and its other end engaged with the ring for actuating the plunger in the opposite direction, certain of the sides of the supporting arm being provided with longitudinally extending grooves and tongues formed integrally on the block for engagement in the grooves.

In testimony whereof I aflix my signature.

EDWARD PEACOGK. 

